From: Daniel Lezcano Subject: Re: [PATCH] ARM: EXYNOS: Use wfi macro in platform_do_lowpower Date: Thu, 22 May 2014 21:01:15 +0200 Message-ID: <537E497B.9020404@linaro.org> References: <1400745455-27920-1-git-send-email-leela.krishna@linaro.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: Received: from mail-wi0-f181.google.com ([209.85.212.181]:54247 "EHLO mail-wi0-f181.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751313AbaEVTBC (ORCPT ); Thu, 22 May 2014 15:01:02 -0400 Received: by mail-wi0-f181.google.com with SMTP id n15so4879909wiw.8 for ; Thu, 22 May 2014 12:01:01 -0700 (PDT) In-Reply-To: <1400745455-27920-1-git-send-email-leela.krishna@linaro.org> Sender: linux-samsung-soc-owner@vger.kernel.org List-Id: linux-samsung-soc@vger.kernel.org To: Leela Krishna Amudala , linux-samsung-soc@vger.kernel.org, linux-pm@vger.kernel.org, linux-arm-kernel@lists.infradead.org Cc: kgene.kim@samsung.com, amit.kucheria@linaro.org On 05/22/2014 09:57 AM, Leela Krishna Amudala wrote: > This patch is originally based on commit b3377d186572 ("ARM: 7064/1: > vexpress: Use wfi macro in platform_do_lowpower.") > > Current Exynos CPU hotplug code includes a hardcoded WFI > instruction, in ARM encoding. When the kernel is compiled in Thumb-2 > mode, this is invalid and causes the machine to hang hard when a CPU > is offlined. > > Use wfi macro instead of the hardcoded WFI instruction. > > Signed-off-by: Leela Krishna Amudala Acked-by: Daniel Lezcano --=20 Linaro.org =E2=94=82 Open source software fo= r ARM SoCs =46ollow Linaro: Facebook | Twitter | Blog